Using herbicides to grow onions
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When onion seedlings are raised, 50% paracetamol WP 65-75 g per 40-60 kg of water can be sprayed per mu. When onion on seedlings can be used per acre 33% penicillin (herbs pass) EC 100 ml, or 48% per acre Zhong Ding Ling (dirtilin) ​​EC 150 ml.
Before transplanting onions, the onion can be sprayed with 24% oxyfluamethacin (Golce) 66-72 ml per mu and 50-60 kg water. Before the onion is transplanted before soil preparation, 48-percent of trifluralin can be used per acre for 100-150 ml, or 200 ml per acre with 48% sec-butylamine (dirtilin) ​​EC, and sprayed with 50-60 kg of water.
After the onion is planted in the 3-4 leaf stage, 24% gourd 66-72 ml can be used per acre and 50-60 kg water can be sprayed. After the onion is transplanted, it can use 33% weeding 100-150 ml per mu. Or use 50% Ligulon WP 100g/mu and spray 50-60kg water.
In order to improve the effect of applying herbicides on onions and onions, it should be noted that seedlings should be applied before emergence after sowing. After transplanting, it should be applied before seedling emergence after seedlings are planted. Onions were inactivated during the 2-leaf period and were carefully used before the 3-leaf period. When the temperature is low, sunny days before and after noon, when the temperature is high, the morning or afternoon application. Sandy soil should not be applied to paraquat.